y4a model 720p black wifi p2p surveillance cctv security ip wireless ptz camera use for indoor can connect to nvr, Black;white

features: *720p hd image sensor *two-way audio *audio input: built-in pickup microphone g.711a *audio output: built-in 8 ohm 1w speaker *ptz angle: 355 degrees horizontal & 90 degrees vertical *supports: video playback, cloud storage (encryption protection), multiple users online, etc